SKU: 22369264162

Oura Ring 4 - Black

Sale price$157.05 Regular price$174.50
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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8

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Description

Oura Ring 4 - BlackKey Benefits Accurately measures over 30 key biometrics. Syncs with Apple Health, Google Health, Strava and more. Designed for all day comfort and long term wear. Up to 8 days battery life. SIZE BEFORE YOU BUY Size yourself with the Oura Ring 4 Sizing Kit before purchasing your Oura Ring 4. Oura Ring 4 is the next evolution of the revolutionary smart ring, designed to help you get up close and personal with your health. It is built around a

Key Benefits

  • Accurately measures over 30 key biometrics.
  • Syncs with Apple Health, Google Health, Strava and more.
  • Designed for all-day comfort and long-term wear.
  • Up to 8 days battery life.


SIZE BEFORE YOU BUY - Size yourself with the Oura Ring 4 Sizing Kit before purchasing your Oura Ring 4.

Oura Ring 4 is the next evolution of the revolutionary smart ring, designed to help you get up close and personal with your health. It is built around a breakthrough sensing technology, Smart Sensing, which adapts to your finger to deliver accurate, continuous data. With up to 8 days of battery life, Oura Ring 4 provides the most complete picture of your health. It has a fully-titanium design with recessed sensors on the interior, making it more comfortable than ever before and gentle, even on sensitive skin. Oura Ring 4 comes in an expanded size range (sizes 4-15) and six stunning finishes to fit your style and your finger, effortlessly.

PRECISION ACCURACY WITH SMART SENSING - Oura tracks over 30 biometrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night.

HOLISTIC HEALTH TRACKING - Oura provides over 30 biometrics, including sleep, activity, stress, heart health, and women’s health metrics.

DESIGNED FOR 24/7 WEAR — The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin.

LONG LASTING BATTERY - With up to 8 days of battery life, no screens, and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments. Includes a dedicated charger for convenient, reliable recharging.

SYNC WITH YOUR FAVORITE APPS - Compatible with iOS and Android —Oura seamlessly integrates with over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more.

MEMBERSHIP IMPROVES WITH YOU - First month of Oura Membership is on us for new members with your purchase, £5.99/mo afterwards (or £69.99 annually). Enjoy access to continuous features and app updates within the award-winning Oura App.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22369264162

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4.3 ★★★★★
Based on 26 reviews
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C
Verified Purchase
claudia
Pawtucket, US
★★★★★ 5
Easy to assemble and quality
Style: Printer & Inks, Style: Printer & Inks
Using my printer almost everyday since Im starting on a sublimation project and I just love it. The printing quality look good The set up was easy and for now Is working 100%
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
N
Verified Purchase
Nadiagne
Carnegie, US
★★★★★ 5
Great 🥰
Style: Printer & Inks, Style: Printer & Inks
The Epson F170 has been ideal for getting started with sublimation. It's easy to use, prints vibrant and defined colors, and has allowed me to personalize various projects with excellent results. As a beginner, it has given me a lot of confidence to learn and create without complications. I definitely recommend it for anyone starting out in sublimation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
J
Verified Purchase
jesus hernandez
West Palm Beach, US
★★★★★ 5
100% recommended.
Style: Printer & Inks
It is an affordable and nice printer for those how wants to start a sublimation printer business. It’s works so good. I am using it to heat press cellphone case and it works amazing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
P
Verified Purchase
Pat Traynor
Belleville, US
★★★★★ 1
No returns and no support. If it doesn't work properly, too bad.
Style: Printer & Inks, Style: Printer & Inks
I was fairly happy with my Epson ET 2800, but was told that I'd get better colors with the F170. So I bit the bullet. The installation went smoothly and I was printing in short order. It was when I started printing items that had some dark gray that I noticed the problem. It was printing green. I contacted Epson tech support and they answered the phone almost immediately. (And how rare is that??) The woman I spoke with seemed to be familiar with the problem and advised me to modify the printer preferences and change the color correction from "ICM" to "No color correction". Well, it wasn't printing green anymore. Now the grays were brown. At this point, she ran out of ideas and gave me an email address for the second level of tech support and asked if I'd send a photo of the printed fabrics showing the problem. I did. That was over three weeks ago. I've sent a couple of followup emails, but they're ignoring me. But the best news was discovering that there are no returns on this product. I didn't think that was a thing with Amazon and I've never had any problems before. So now the 30-day return window is about to elapse and it appears that I'm stuck with an oversized doorstop. In the photo I'm including with this review, the fabric on the upper-left was printed with my Epson ET 2800. On the upper right, the F170 with ICM color correction. On the bottom, the F170 with no color correction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2025
C
Verified Purchase
Cherished1
Grantham, US
★★★★★ 5
Epson SureColor F170 Sublimation Printer Rocks!
Style: Printer & Inks, Style: Printer & Inks
TI’m a newbie at sublimation, and this is my first sublimation printer. I love it! I can’t wait to make more things! I like that it’s not too large, but still can print up to 8.5x14”. The quality seems to be really good, but I also don’t have any other printer to compare it to. This was my very first project! I’m very happy with it so far!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026

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